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<FONT color="green">001</FONT>    package org.hackystat.projectbrowser.googlechart;<a name="line.1"></a>
<FONT color="green">002</FONT>    <a name="line.2"></a>
<FONT color="green">003</FONT>    import java.awt.Color;<a name="line.3"></a>
<FONT color="green">004</FONT>    import java.io.Serializable;<a name="line.4"></a>
<FONT color="green">005</FONT>    import java.util.ArrayList;<a name="line.5"></a>
<FONT color="green">006</FONT>    import java.util.Arrays;<a name="line.6"></a>
<FONT color="green">007</FONT>    import java.util.List;<a name="line.7"></a>
<FONT color="green">008</FONT>    import java.util.Random;<a name="line.8"></a>
<FONT color="green">009</FONT>    <a name="line.9"></a>
<FONT color="green">010</FONT>    /**<a name="line.10"></a>
<FONT color="green">011</FONT>     * Chart class that represent a chart image that generated from Google Chart API.<a name="line.11"></a>
<FONT color="green">012</FONT>     * @author Shaoxuan Zhang<a name="line.12"></a>
<FONT color="green">013</FONT>     */<a name="line.13"></a>
<FONT color="green">014</FONT>    public class GoogleChart implements Serializable {<a name="line.14"></a>
<FONT color="green">015</FONT>      /** Support serialization. */<a name="line.15"></a>
<FONT color="green">016</FONT>      private static final long serialVersionUID = 1L;<a name="line.16"></a>
<FONT color="green">017</FONT>      /** host of google chart service */<a name="line.17"></a>
<FONT color="green">018</FONT>      public static final String GOOGLECHART_API_URL = "http://chart.apis.google.com/chart?";<a name="line.18"></a>
<FONT color="green">019</FONT>      /** character that separate parameter. */<a name="line.19"></a>
<FONT color="green">020</FONT>      public static final String PARAMETER_SEPARATOR = "&amp;";<a name="line.20"></a>
<FONT color="green">021</FONT>      /** character that separate data sets. */<a name="line.21"></a>
<FONT color="green">022</FONT>      public static final String DATASET_SEPARATOR = "|";<a name="line.22"></a>
<FONT color="green">023</FONT>      /** character that separate data items in a data set. */<a name="line.23"></a>
<FONT color="green">024</FONT>      public static final String DATAITEM_SEPARATOR = ",";<a name="line.24"></a>
<FONT color="green">025</FONT>      /** chart type of this chart. */<a name="line.25"></a>
<FONT color="green">026</FONT>      private ChartType chartType;<a name="line.26"></a>
<FONT color="green">027</FONT>      /** width in pixel. */<a name="line.27"></a>
<FONT color="green">028</FONT>      private int width;<a name="line.28"></a>
<FONT color="green">029</FONT>      /** height in pixel. */<a name="line.29"></a>
<FONT color="green">030</FONT>      private int height;<a name="line.30"></a>
<FONT color="green">031</FONT>      /** the background color. */<a name="line.31"></a>
<FONT color="green">032</FONT>      private String backgroundColor;<a name="line.32"></a>
<FONT color="green">033</FONT>      /** data to display. */<a name="line.33"></a>
<FONT color="green">034</FONT>      private List&lt;List&lt;Double&gt;&gt; chartData = new ArrayList&lt;List&lt;Double&gt;&gt;();<a name="line.34"></a>
<FONT color="green">035</FONT>      /** scale of the data. */<a name="line.35"></a>
<FONT color="green">036</FONT>      private List&lt;List&lt;Double&gt;&gt; chartDataScale = new ArrayList&lt;List&lt;Double&gt;&gt;();<a name="line.36"></a>
<FONT color="green">037</FONT>      /** colors of the chart. */<a name="line.37"></a>
<FONT color="green">038</FONT>      private List&lt;String&gt; colors = new ArrayList&lt;String&gt;();<a name="line.38"></a>
<FONT color="green">039</FONT>      /** title. */<a name="line.39"></a>
<FONT color="green">040</FONT>      private String title = null;<a name="line.40"></a>
<FONT color="green">041</FONT>      /** Axis types. */<a name="line.41"></a>
<FONT color="green">042</FONT>      private List&lt;String&gt; axisTypes = new ArrayList&lt;String&gt;();<a name="line.42"></a>
<FONT color="green">043</FONT>      /** Axis labels. */<a name="line.43"></a>
<FONT color="green">044</FONT>      private List&lt;List&lt;String&gt;&gt; axisLabels = new ArrayList&lt;List&lt;String&gt;&gt;();<a name="line.44"></a>
<FONT color="green">045</FONT>      /** Axis max ranges. */<a name="line.45"></a>
<FONT color="green">046</FONT>      private List&lt;List&lt;Double&gt;&gt; axisMaxRange = new ArrayList&lt;List&lt;Double&gt;&gt;();<a name="line.46"></a>
<FONT color="green">047</FONT>      /** Axis colors. */<a name="line.47"></a>
<FONT color="green">048</FONT>      private List&lt;String&gt; axisColor = new ArrayList&lt;String&gt;();<a name="line.48"></a>
<FONT color="green">049</FONT>      /** the markers. */<a name="line.49"></a>
<FONT color="green">050</FONT>      private List&lt;String&gt; chartMarker = new ArrayList&lt;String&gt;();<a name="line.50"></a>
<FONT color="green">051</FONT>      /** colors of the markers. */<a name="line.51"></a>
<FONT color="green">052</FONT>      private List&lt;String&gt; markerColors = new ArrayList&lt;String&gt;();<a name="line.52"></a>
<FONT color="green">053</FONT>      /** the legends. */<a name="line.53"></a>
<FONT color="green">054</FONT>      private List&lt;String&gt; chartLegend = new ArrayList&lt;String&gt;();<a name="line.54"></a>
<FONT color="green">055</FONT>      /** the line styles.*/<a name="line.55"></a>
<FONT color="green">056</FONT>      private List&lt;List&lt;Double&gt;&gt; chartLineStyle = new ArrayList&lt;List&lt;Double&gt;&gt;();<a name="line.56"></a>
<FONT color="green">057</FONT>      /** the bar chart size. */<a name="line.57"></a>
<FONT color="green">058</FONT>      private List&lt;Integer&gt; barChartSize = new ArrayList&lt;Integer&gt;();<a name="line.58"></a>
<FONT color="green">059</FONT>      /** collection of markers.*/<a name="line.59"></a>
<FONT color="green">060</FONT>      private static final List&lt;String&gt; markers = Arrays.asList(new String[]{"o", "d", "c", "x", "s"});<a name="line.60"></a>
<FONT color="green">061</FONT>      /** index of the current available marker. */<a name="line.61"></a>
<FONT color="green">062</FONT>      private static int markersIndex = 0;<a name="line.62"></a>
<FONT color="green">063</FONT>      /**<a name="line.63"></a>
<FONT color="green">064</FONT>       * initialize the chart with indispensable parameter.<a name="line.64"></a>
<FONT color="green">065</FONT>       * @param chartType type of this chart.<a name="line.65"></a>
<FONT color="green">066</FONT>       * @param width width.<a name="line.66"></a>
<FONT color="green">067</FONT>       * @param height height.<a name="line.67"></a>
<FONT color="green">068</FONT>       */<a name="line.68"></a>
<FONT color="green">069</FONT>      public GoogleChart(ChartType chartType, int width, int height) {<a name="line.69"></a>
<FONT color="green">070</FONT>        this.chartType = chartType;<a name="line.70"></a>
<FONT color="green">071</FONT>        this.width = width;<a name="line.71"></a>
<FONT color="green">072</FONT>        this.height = height;<a name="line.72"></a>
<FONT color="green">073</FONT>      }<a name="line.73"></a>
<FONT color="green">074</FONT>      <a name="line.74"></a>
<FONT color="green">075</FONT>      /**<a name="line.75"></a>
<FONT color="green">076</FONT>       * Return the next available marker.<a name="line.76"></a>
<FONT color="green">077</FONT>       * @return a String that represents the marker<a name="line.77"></a>
<FONT color="green">078</FONT>       */<a name="line.78"></a>
<FONT color="green">079</FONT>      public static String getNextMarker() {<a name="line.79"></a>
<FONT color="green">080</FONT>        if (markersIndex &gt;= markers.size()) {<a name="line.80"></a>
<FONT color="green">081</FONT>          markersIndex = 0;<a name="line.81"></a>
<FONT color="green">082</FONT>        }<a name="line.82"></a>
<FONT color="green">083</FONT>        return markers.get(markersIndex++);<a name="line.83"></a>
<FONT color="green">084</FONT>      }<a name="line.84"></a>
<FONT color="green">085</FONT>    <a name="line.85"></a>
<FONT color="green">086</FONT>      /**<a name="line.86"></a>
<FONT color="green">087</FONT>       * Return the URL that represent this chart from Google Chart API.<a name="line.87"></a>
<FONT color="green">088</FONT>       * @return the URL of this chart.<a name="line.88"></a>
<FONT color="green">089</FONT>       */<a name="line.89"></a>
<FONT color="green">090</FONT>      public String getUrl() {<a name="line.90"></a>
<FONT color="green">091</FONT>        String url = GOOGLECHART_API_URL;<a name="line.91"></a>
<FONT color="green">092</FONT>        url += "chs=" + this.width + "x" + this.height;<a name="line.92"></a>
<FONT color="green">093</FONT>        //add data<a name="line.93"></a>
<FONT color="green">094</FONT>        url += PARAMETER_SEPARATOR + "chd=t:" + getDataTableAsString(this.chartData);<a name="line.94"></a>
<FONT color="green">095</FONT>        //add data scale<a name="line.95"></a>
<FONT color="green">096</FONT>        if (chartDataScale != null &amp;&amp; !chartDataScale.isEmpty()) {<a name="line.96"></a>
<FONT color="green">097</FONT>          String scaleData = getDataTableAsString(this.chartDataScale);<a name="line.97"></a>
<FONT color="green">098</FONT>          scaleData = scaleData.replace('|', ',');<a name="line.98"></a>
<FONT color="green">099</FONT>          url += PARAMETER_SEPARATOR + "chds=" + scaleData;<a name="line.99"></a>
<FONT color="green">100</FONT>        }<a name="line.100"></a>
<FONT color="green">101</FONT>        //add chart type<a name="line.101"></a>
<FONT color="green">102</FONT>        url += PARAMETER_SEPARATOR + "cht=" + chartType.abbrev();<a name="line.102"></a>
<FONT color="green">103</FONT>        //add bar chart size<a name="line.103"></a>
<FONT color="green">104</FONT>        if (!this.barChartSize.isEmpty()) {<a name="line.104"></a>
<FONT color="green">105</FONT>          url += PARAMETER_SEPARATOR + "chbh=" + getDataListAsString(barChartSize);<a name="line.105"></a>
<FONT color="green">106</FONT>        }<a name="line.106"></a>
<FONT color="green">107</FONT>        //add title<a name="line.107"></a>
<FONT color="green">108</FONT>        if (this.title != null) {<a name="line.108"></a>
<FONT color="green">109</FONT>          url += PARAMETER_SEPARATOR + "chtt=" + this.title;<a name="line.109"></a>
<FONT color="green">110</FONT>        }<a name="line.110"></a>
<FONT color="green">111</FONT>        //add stream color<a name="line.111"></a>
<FONT color="green">112</FONT>        if (colors != null &amp;&amp; !colors.isEmpty()) {<a name="line.112"></a>
<FONT color="green">113</FONT>          url += PARAMETER_SEPARATOR + "chco=" + getDataListAsString(this.colors);<a name="line.113"></a>
<FONT color="green">114</FONT>        }<a name="line.114"></a>
<FONT color="green">115</FONT>        if (!this.chartLineStyle.isEmpty()) {<a name="line.115"></a>
<FONT color="green">116</FONT>          url += PARAMETER_SEPARATOR + "chls=" + getDataTableAsString(chartLineStyle);<a name="line.116"></a>
<FONT color="green">117</FONT>        }<a name="line.117"></a>
<FONT color="green">118</FONT>        //add axis type<a name="line.118"></a>
<FONT color="green">119</FONT>        if (!this.axisTypes.isEmpty()) {<a name="line.119"></a>
<FONT color="green">120</FONT>          url += PARAMETER_SEPARATOR + "chxt=" + getDataListAsString(this.axisTypes);<a name="line.120"></a>
<FONT color="green">121</FONT>        }<a name="line.121"></a>
<FONT color="green">122</FONT>        //add axis label<a name="line.122"></a>
<FONT color="green">123</FONT>        if (!this.axisLabels.isEmpty()) {<a name="line.123"></a>
<FONT color="green">124</FONT>          StringBuffer stringBuffer = new StringBuffer();<a name="line.124"></a>
<FONT color="green">125</FONT>          for (int i = 0; i &lt; this.axisLabels.size(); ++i) {<a name="line.125"></a>
<FONT color="green">126</FONT>            if (this.axisLabels.get(i).size() &gt; 0) {<a name="line.126"></a>
<FONT color="green">127</FONT>              stringBuffer.append((stringBuffer.length() &gt; 0) ? '|' : "");<a name="line.127"></a>
<FONT color="green">128</FONT>              stringBuffer.append(i);<a name="line.128"></a>
<FONT color="green">129</FONT>              stringBuffer.append(':');<a name="line.129"></a>
<FONT color="green">130</FONT>              for (String label : this.axisLabels.get(i)) {<a name="line.130"></a>
<FONT color="green">131</FONT>                stringBuffer.append('|');<a name="line.131"></a>
<FONT color="green">132</FONT>                stringBuffer.append(label);<a name="line.132"></a>
<FONT color="green">133</FONT>              }<a name="line.133"></a>
<FONT color="green">134</FONT>            }<a name="line.134"></a>
<FONT color="green">135</FONT>          }<a name="line.135"></a>
<FONT color="green">136</FONT>          url += PARAMETER_SEPARATOR + "chxl=" + stringBuffer.toString();<a name="line.136"></a>
<FONT color="green">137</FONT>        }<a name="line.137"></a>
<FONT color="green">138</FONT>        //add axis range<a name="line.138"></a>
<FONT color="green">139</FONT>        if (!this.axisMaxRange.isEmpty()) {<a name="line.139"></a>
<FONT color="green">140</FONT>          List&lt;List&lt;String&gt;&gt; axisRange = new ArrayList&lt;List&lt;String&gt;&gt;();<a name="line.140"></a>
<FONT color="green">141</FONT>          for (int i = 0; i &lt; this.axisMaxRange.size(); ++i) {<a name="line.141"></a>
<FONT color="green">142</FONT>            if (!this.axisMaxRange.get(i).isEmpty()) {<a name="line.142"></a>
<FONT color="green">143</FONT>              List&lt;String&gt; range = new ArrayList&lt;String&gt;();<a name="line.143"></a>
<FONT color="green">144</FONT>              range.add(String.valueOf(i));<a name="line.144"></a>
<FONT color="green">145</FONT>              for (Double value : this.axisMaxRange.get(i)) {<a name="line.145"></a>
<FONT color="green">146</FONT>                range.add(value.toString());<a name="line.146"></a>
<FONT color="green">147</FONT>              }<a name="line.147"></a>
<FONT color="green">148</FONT>              axisRange.add(range);<a name="line.148"></a>
<FONT color="green">149</FONT>            }<a name="line.149"></a>
<FONT color="green">150</FONT>          }<a name="line.150"></a>
<FONT color="green">151</FONT>          url += PARAMETER_SEPARATOR + "chxr=" + this.getDataTableAsString(axisRange);<a name="line.151"></a>
<FONT color="green">152</FONT>        }<a name="line.152"></a>
<FONT color="green">153</FONT>        //add axis color<a name="line.153"></a>
<FONT color="green">154</FONT>        if (!this.axisColor.isEmpty()) {<a name="line.154"></a>
<FONT color="green">155</FONT>          List&lt;List&lt;String&gt;&gt; axisStyle = new ArrayList&lt;List&lt;String&gt;&gt;();<a name="line.155"></a>
<FONT color="green">156</FONT>          for (int i = 0; i &lt; this.axisColor.size(); ++i) {<a name="line.156"></a>
<FONT color="green">157</FONT>            if (this.axisColor.get(i).length() &gt; 0) {<a name="line.157"></a>
<FONT color="green">158</FONT>              axisStyle.add(Arrays.asList(new String[]{String.valueOf(i), this.axisColor.get(i)}));<a name="line.158"></a>
<FONT color="green">159</FONT>            }<a name="line.159"></a>
<FONT color="green">160</FONT>          }<a name="line.160"></a>
<FONT color="green">161</FONT>          url += PARAMETER_SEPARATOR + "chxs=" + this.getDataTableAsString(axisStyle);<a name="line.161"></a>
<FONT color="green">162</FONT>        }<a name="line.162"></a>
<FONT color="green">163</FONT>        //add chart mark<a name="line.163"></a>
<FONT color="green">164</FONT>        if (!this.chartMarker.isEmpty()) {<a name="line.164"></a>
<FONT color="green">165</FONT>          List&lt;List&lt;String&gt;&gt; markerList = new ArrayList&lt;List&lt;String&gt;&gt;();<a name="line.165"></a>
<FONT color="green">166</FONT>          for (int i = 0; i &lt; this.chartMarker.size(); ++i) {<a name="line.166"></a>
<FONT color="green">167</FONT>              List&lt;String&gt; marker = new ArrayList&lt;String&gt;();<a name="line.167"></a>
<FONT color="green">168</FONT>              marker.add(this.chartMarker.get(i));<a name="line.168"></a>
<FONT color="green">169</FONT>              marker.add(this.getMarkerColors().get(i));<a name="line.169"></a>
<FONT color="green">170</FONT>              marker.add(i + "");<a name="line.170"></a>
<FONT color="green">171</FONT>              marker.add("-1.0");<a name="line.171"></a>
<FONT color="green">172</FONT>              marker.add("10.0");<a name="line.172"></a>
<FONT color="green">173</FONT>              markerList.add(marker);<a name="line.173"></a>
<FONT color="green">174</FONT>          }<a name="line.174"></a>
<FONT color="green">175</FONT>          url += PARAMETER_SEPARATOR + "chm=" + this.getDataTableAsString(markerList);<a name="line.175"></a>
<FONT color="green">176</FONT>        }<a name="line.176"></a>
<FONT color="green">177</FONT>        // add legend<a name="line.177"></a>
<FONT color="green">178</FONT>        if (!this.chartLegend.isEmpty()) {<a name="line.178"></a>
<FONT color="green">179</FONT>          StringBuffer stringBuffer = new StringBuffer();<a name="line.179"></a>
<FONT color="green">180</FONT>          for (String dataItem : this.chartLegend) {<a name="line.180"></a>
<FONT color="green">181</FONT>            /*<a name="line.181"></a>
<FONT color="green">182</FONT>            int index = dataItem.indexOf('&lt;');<a name="line.182"></a>
<FONT color="green">183</FONT>            String data = dataItem.substring(0, index);<a name="line.183"></a>
<FONT color="green">184</FONT>            */<a name="line.184"></a>
<FONT color="green">185</FONT>            stringBuffer.append(dataItem + DATASET_SEPARATOR);<a name="line.185"></a>
<FONT color="green">186</FONT>          }<a name="line.186"></a>
<FONT color="green">187</FONT>          String dataString = stringBuffer.toString();<a name="line.187"></a>
<FONT color="green">188</FONT>          if (dataString.endsWith(DATASET_SEPARATOR)) {<a name="line.188"></a>
<FONT color="green">189</FONT>            dataString = dataString.substring(0, dataString.lastIndexOf(DATASET_SEPARATOR));<a name="line.189"></a>
<FONT color="green">190</FONT>          }<a name="line.190"></a>
<FONT color="green">191</FONT>          url += PARAMETER_SEPARATOR + "chdl=" + dataString;<a name="line.191"></a>
<FONT color="green">192</FONT>        }<a name="line.192"></a>
<FONT color="green">193</FONT>        if (backgroundColor != null &amp;&amp; backgroundColor.length() &gt; 0) {<a name="line.193"></a>
<FONT color="green">194</FONT>          url += PARAMETER_SEPARATOR + "chf=bg,s," + backgroundColor;<a name="line.194"></a>
<FONT color="green">195</FONT>        }<a name="line.195"></a>
<FONT color="green">196</FONT>        return url;<a name="line.196"></a>
<FONT color="green">197</FONT>      }<a name="line.197"></a>
<FONT color="green">198</FONT>      <a name="line.198"></a>
<FONT color="green">199</FONT>      /**<a name="line.199"></a>
<FONT color="green">200</FONT>       * convert a Color object to a String, with format of RRGGBB.<a name="line.200"></a>
<FONT color="green">201</FONT>       * @param color the Color to be convert.<a name="line.201"></a>
<FONT color="green">202</FONT>       * @return a string that represent the color.<a name="line.202"></a>
<FONT color="green">203</FONT>       */<a name="line.203"></a>
<FONT color="green">204</FONT>      public static String colorToString(Color color) {<a name="line.204"></a>
<FONT color="green">205</FONT>        String colorString = "";<a name="line.205"></a>
<FONT color="green">206</FONT>        String red = "000" + Integer.toHexString(color.getRed());<a name="line.206"></a>
<FONT color="green">207</FONT>        String green = "00" + Integer.toHexString(color.getGreen());<a name="line.207"></a>
<FONT color="green">208</FONT>        String blue = "000" + Integer.toHexString(color.getBlue());<a name="line.208"></a>
<FONT color="green">209</FONT>        String alpha = "00" + Integer.toHexString(color.getAlpha());<a name="line.209"></a>
<FONT color="green">210</FONT>        colorString += red.substring(red.length() - 2);<a name="line.210"></a>
<FONT color="green">211</FONT>        colorString += green.substring(green.length() - 2);<a name="line.211"></a>
<FONT color="green">212</FONT>        colorString += blue.substring(blue.length() - 2);<a name="line.212"></a>
<FONT color="green">213</FONT>        colorString += alpha.substring(alpha.length() - 2);<a name="line.213"></a>
<FONT color="green">214</FONT>        return colorString;<a name="line.214"></a>
<FONT color="green">215</FONT>      }<a name="line.215"></a>
<FONT color="green">216</FONT>      <a name="line.216"></a>
<FONT color="green">217</FONT>      /**<a name="line.217"></a>
<FONT color="green">218</FONT>       * return the text encoding data with scaling.<a name="line.218"></a>
<FONT color="green">219</FONT>       * @param list the list of data to be encoded.<a name="line.219"></a>
<FONT color="green">220</FONT>       * @return String of the encoded data.<a name="line.220"></a>
<FONT color="green">221</FONT>       */<a name="line.221"></a>
<FONT color="green">222</FONT>      private String getDataTableAsString(List&lt;? extends List&lt;? extends Object&gt;&gt; list) {<a name="line.222"></a>
<FONT color="green">223</FONT>        StringBuffer buffer = new StringBuffer();<a name="line.223"></a>
<FONT color="green">224</FONT>        for (List&lt;? extends Object&gt; dataList : list) {<a name="line.224"></a>
<FONT color="green">225</FONT>          buffer.append(getDataListAsString(dataList) + DATASET_SEPARATOR);<a name="line.225"></a>
<FONT color="green">226</FONT>        }<a name="line.226"></a>
<FONT color="green">227</FONT>        String dataString = buffer.toString();<a name="line.227"></a>
<FONT color="green">228</FONT>        if (dataString.endsWith(DATASET_SEPARATOR)) {<a name="line.228"></a>
<FONT color="green">229</FONT>          dataString = dataString.substring(0, dataString.lastIndexOf(DATASET_SEPARATOR));<a name="line.229"></a>
<FONT color="green">230</FONT>        }<a name="line.230"></a>
<FONT color="green">231</FONT>        return dataString;<a name="line.231"></a>
<FONT color="green">232</FONT>      }<a name="line.232"></a>
<FONT color="green">233</FONT>    <a name="line.233"></a>
<FONT color="green">234</FONT>      /**<a name="line.234"></a>
<FONT color="green">235</FONT>       * convert the data list to encoded data string.<a name="line.235"></a>
<FONT color="green">236</FONT>       * @param dataList the data list to be converted.<a name="line.236"></a>
<FONT color="green">237</FONT>       * @return the string of result.<a name="line.237"></a>
<FONT color="green">238</FONT>       */<a name="line.238"></a>
<FONT color="green">239</FONT>      private String getDataListAsString(List&lt;? extends Object&gt; dataList) {<a name="line.239"></a>
<FONT color="green">240</FONT>        StringBuffer buffer = new StringBuffer();<a name="line.240"></a>
<FONT color="green">241</FONT>        for (Object dataItem : dataList) {<a name="line.241"></a>
<FONT color="green">242</FONT>          if (dataItem instanceof Double) {<a name="line.242"></a>
<FONT color="green">243</FONT>            dataItem = trimDouble((Double)dataItem);<a name="line.243"></a>
<FONT color="green">244</FONT>          }<a name="line.244"></a>
<FONT color="green">245</FONT>          buffer.append(dataItem + DATAITEM_SEPARATOR);<a name="line.245"></a>
<FONT color="green">246</FONT>        }<a name="line.246"></a>
<FONT color="green">247</FONT>        String dataString = buffer.toString();<a name="line.247"></a>
<FONT color="green">248</FONT>        if (dataString.endsWith(DATAITEM_SEPARATOR)) {<a name="line.248"></a>
<FONT color="green">249</FONT>          dataString = dataString.substring(0, dataString.lastIndexOf(DATAITEM_SEPARATOR));<a name="line.249"></a>
<FONT color="green">250</FONT>        }<a name="line.250"></a>
<FONT color="green">251</FONT>        return dataString;<a name="line.251"></a>
<FONT color="green">252</FONT>      }<a name="line.252"></a>
<FONT color="green">253</FONT>      <a name="line.253"></a>
<FONT color="green">254</FONT>      /**<a name="line.254"></a>
<FONT color="green">255</FONT>       * Trim the double number. <a name="line.255"></a>
<FONT color="green">256</FONT>       * Keep only one number after decimal point.<a name="line.256"></a>
<FONT color="green">257</FONT>       * @param dataItem the Double number.<a name="line.257"></a>
<FONT color="green">258</FONT>       * @return a string of result.<a name="line.258"></a>
<FONT color="green">259</FONT>       */<a name="line.259"></a>
<FONT color="green">260</FONT>      private String trimDouble(Double dataItem) {<a name="line.260"></a>
<FONT color="green">261</FONT>        String number = dataItem.toString();<a name="line.261"></a>
<FONT color="green">262</FONT>        int index = number.indexOf('.');<a name="line.262"></a>
<FONT color="green">263</FONT>        if (index &gt; 0 &amp;&amp; index + 2 &lt; number.length()) {<a name="line.263"></a>
<FONT color="green">264</FONT>          number = number.substring(0, index + 2);<a name="line.264"></a>
<FONT color="green">265</FONT>        }<a name="line.265"></a>
<FONT color="green">266</FONT>        return number;<a name="line.266"></a>
<FONT color="green">267</FONT>      }<a name="line.267"></a>
<FONT color="green">268</FONT>    <a name="line.268"></a>
<FONT color="green">269</FONT>      /**<a name="line.269"></a>
<FONT color="green">270</FONT>       * @param width the width to set<a name="line.270"></a>
<FONT color="green">271</FONT>       */<a name="line.271"></a>
<FONT color="green">272</FONT>      public void setWidth(int width) {<a name="line.272"></a>
<FONT color="green">273</FONT>        this.width = width;<a name="line.273"></a>
<FONT color="green">274</FONT>      }<a name="line.274"></a>
<FONT color="green">275</FONT>    <a name="line.275"></a>
<FONT color="green">276</FONT>      /**<a name="line.276"></a>
<FONT color="green">277</FONT>       * @return the width<a name="line.277"></a>
<FONT color="green">278</FONT>       */<a name="line.278"></a>
<FONT color="green">279</FONT>      public int getWidth() {<a name="line.279"></a>
<FONT color="green">280</FONT>        return width;<a name="line.280"></a>
<FONT color="green">281</FONT>      }<a name="line.281"></a>
<FONT color="green">282</FONT>    <a name="line.282"></a>
<FONT color="green">283</FONT>      /**<a name="line.283"></a>
<FONT color="green">284</FONT>       * @param height the height to set<a name="line.284"></a>
<FONT color="green">285</FONT>       */<a name="line.285"></a>
<FONT color="green">286</FONT>      public void setHeight(int height) {<a name="line.286"></a>
<FONT color="green">287</FONT>        this.height = height;<a name="line.287"></a>
<FONT color="green">288</FONT>      }<a name="line.288"></a>
<FONT color="green">289</FONT>    <a name="line.289"></a>
<FONT color="green">290</FONT>      /**<a name="line.290"></a>
<FONT color="green">291</FONT>       * @return the height<a name="line.291"></a>
<FONT color="green">292</FONT>       */<a name="line.292"></a>
<FONT color="green">293</FONT>      public int getHeight() {<a name="line.293"></a>
<FONT color="green">294</FONT>        return height;<a name="line.294"></a>
<FONT color="green">295</FONT>      }<a name="line.295"></a>
<FONT color="green">296</FONT>    <a name="line.296"></a>
<FONT color="green">297</FONT>      /**<a name="line.297"></a>
<FONT color="green">298</FONT>       * @param chartType the chartType to set<a name="line.298"></a>
<FONT color="green">299</FONT>       */<a name="line.299"></a>
<FONT color="green">300</FONT>      public void setChartType(ChartType chartType) {<a name="line.300"></a>
<FONT color="green">301</FONT>        this.chartType = chartType;<a name="line.301"></a>
<FONT color="green">302</FONT>      }<a name="line.302"></a>
<FONT color="green">303</FONT>    <a name="line.303"></a>
<FONT color="green">304</FONT>      /**<a name="line.304"></a>
<FONT color="green">305</FONT>       * @return the chartType<a name="line.305"></a>
<FONT color="green">306</FONT>       */<a name="line.306"></a>
<FONT color="green">307</FONT>      public ChartType getChartType() {<a name="line.307"></a>
<FONT color="green">308</FONT>        return chartType;<a name="line.308"></a>
<FONT color="green">309</FONT>      }<a name="line.309"></a>
<FONT color="green">310</FONT>    <a name="line.310"></a>
<FONT color="green">311</FONT>      /**<a name="line.311"></a>
<FONT color="green">312</FONT>       * @param chartData the chartData to set<a name="line.312"></a>
<FONT color="green">313</FONT>       */<a name="line.313"></a>
<FONT color="green">314</FONT>      public void setChartData(List&lt;List&lt;Double&gt;&gt; chartData) {<a name="line.314"></a>
<FONT color="green">315</FONT>        this.chartData = chartData;<a name="line.315"></a>
<FONT color="green">316</FONT>      }<a name="line.316"></a>
<FONT color="green">317</FONT>    <a name="line.317"></a>
<FONT color="green">318</FONT>      /**<a name="line.318"></a>
<FONT color="green">319</FONT>       * @return the chartData<a name="line.319"></a>
<FONT color="green">320</FONT>       */<a name="line.320"></a>
<FONT color="green">321</FONT>      public List&lt;List&lt;Double&gt;&gt; getChartData() {<a name="line.321"></a>
<FONT color="green">322</FONT>        return chartData;<a name="line.322"></a>
<FONT color="green">323</FONT>      }<a name="line.323"></a>
<FONT color="green">324</FONT>    <a name="line.324"></a>
<FONT color="green">325</FONT>      /**<a name="line.325"></a>
<FONT color="green">326</FONT>       * @param chartDataScale the chartDataScale to set<a name="line.326"></a>
<FONT color="green">327</FONT>       */<a name="line.327"></a>
<FONT color="green">328</FONT>      public void setChartDataScale(List&lt;List&lt;Double&gt;&gt; chartDataScale) {<a name="line.328"></a>
<FONT color="green">329</FONT>        this.chartDataScale = chartDataScale;<a name="line.329"></a>
<FONT color="green">330</FONT>      }<a name="line.330"></a>
<FONT color="green">331</FONT>    <a name="line.331"></a>
<FONT color="green">332</FONT>      /**<a name="line.332"></a>
<FONT color="green">333</FONT>       * @return the chartDataScale<a name="line.333"></a>
<FONT color="green">334</FONT>       */<a name="line.334"></a>
<FONT color="green">335</FONT>      public List&lt;List&lt;Double&gt;&gt; getChartDataScale() {<a name="line.335"></a>
<FONT color="green">336</FONT>        return chartDataScale;<a name="line.336"></a>
<FONT color="green">337</FONT>      }<a name="line.337"></a>
<FONT color="green">338</FONT>    <a name="line.338"></a>
<FONT color="green">339</FONT>      /**<a name="line.339"></a>
<FONT color="green">340</FONT>       * @return the color list.<a name="line.340"></a>
<FONT color="green">341</FONT>       */<a name="line.341"></a>
<FONT color="green">342</FONT>      public List&lt;String&gt; getColors() {<a name="line.342"></a>
<FONT color="green">343</FONT>        return this.colors;<a name="line.343"></a>
<FONT color="green">344</FONT>      }<a name="line.344"></a>
<FONT color="green">345</FONT>      <a name="line.345"></a>
<FONT color="green">346</FONT>      /**<a name="line.346"></a>
<FONT color="green">347</FONT>       * add the color to color list.<a name="line.347"></a>
<FONT color="green">348</FONT>       * @param color String that represent the color in format RRGGBB.<a name="line.348"></a>
<FONT color="green">349</FONT>       */<a name="line.349"></a>
<FONT color="green">350</FONT>      public void addColor(String color) {<a name="line.350"></a>
<FONT color="green">351</FONT>        this.colors.add(color);<a name="line.351"></a>
<FONT color="green">352</FONT>      }<a name="line.352"></a>
<FONT color="green">353</FONT>    <a name="line.353"></a>
<FONT color="green">354</FONT>      /**<a name="line.354"></a>
<FONT color="green">355</FONT>       * add the color to color list.<a name="line.355"></a>
<FONT color="green">356</FONT>       * @param color the Color to add.<a name="line.356"></a>
<FONT color="green">357</FONT>       */<a name="line.357"></a>
<FONT color="green">358</FONT>      public void addColor(Color color) {<a name="line.358"></a>
<FONT color="green">359</FONT>        this.colors.add(colorToString(color));<a name="line.359"></a>
<FONT color="green">360</FONT>      }<a name="line.360"></a>
<FONT color="green">361</FONT>      <a name="line.361"></a>
<FONT color="green">362</FONT>      /**<a name="line.362"></a>
<FONT color="green">363</FONT>       * @param title the title to set<a name="line.363"></a>
<FONT color="green">364</FONT>       */<a name="line.364"></a>
<FONT color="green">365</FONT>      public void setTitle(String title) {<a name="line.365"></a>
<FONT color="green">366</FONT>        this.title = title;<a name="line.366"></a>
<FONT color="green">367</FONT>      }<a name="line.367"></a>
<FONT color="green">368</FONT>    <a name="line.368"></a>
<FONT color="green">369</FONT>      /**<a name="line.369"></a>
<FONT color="green">370</FONT>       * @return the title<a name="line.370"></a>
<FONT color="green">371</FONT>       */<a name="line.371"></a>
<FONT color="green">372</FONT>      public String getTitle() {<a name="line.372"></a>
<FONT color="green">373</FONT>        return title;<a name="line.373"></a>
<FONT color="green">374</FONT>      }<a name="line.374"></a>
<FONT color="green">375</FONT>      <a name="line.375"></a>
<FONT color="green">376</FONT>      /**<a name="line.376"></a>
<FONT color="green">377</FONT>       * add a label with default label values.<a name="line.377"></a>
<FONT color="green">378</FONT>       * @param type axis label type, either x, t, y, or r.<a name="line.378"></a>
<FONT color="green">379</FONT>       */<a name="line.379"></a>
<FONT color="green">380</FONT>      public void addAxisLabel(String type) {<a name="line.380"></a>
<FONT color="green">381</FONT>        addAxisLabel(type, new ArrayList&lt;String&gt;(), "");<a name="line.381"></a>
<FONT color="green">382</FONT>      }<a name="line.382"></a>
<FONT color="green">383</FONT>    <a name="line.383"></a>
<FONT color="green">384</FONT>      /**<a name="line.384"></a>
<FONT color="green">385</FONT>       * add a label with given label values.<a name="line.385"></a>
<FONT color="green">386</FONT>       * @param type axis label type, either x, t, y, or r.<a name="line.386"></a>
<FONT color="green">387</FONT>       * @param labels the given label values.<a name="line.387"></a>
<FONT color="green">388</FONT>       * @param color the axis color.<a name="line.388"></a>
<FONT color="green">389</FONT>       */<a name="line.389"></a>
<FONT color="green">390</FONT>      public void addAxisLabel(String type, List&lt;String&gt; labels, String color) {<a name="line.390"></a>
<FONT color="green">391</FONT>        this.axisTypes.add(type);<a name="line.391"></a>
<FONT color="green">392</FONT>        this.axisLabels.add(labels);<a name="line.392"></a>
<FONT color="green">393</FONT>        this.axisMaxRange.add(new ArrayList&lt;Double&gt;());<a name="line.393"></a>
<FONT color="green">394</FONT>        this.axisColor.add(color);<a name="line.394"></a>
<FONT color="green">395</FONT>      }<a name="line.395"></a>
<FONT color="green">396</FONT>    <a name="line.396"></a>
<FONT color="green">397</FONT>      /**<a name="line.397"></a>
<FONT color="green">398</FONT>       * add a label with given label range.<a name="line.398"></a>
<FONT color="green">399</FONT>       * @param type axis label type, either x, t, y, or r.<a name="line.399"></a>
<FONT color="green">400</FONT>       * @param range the given range.<a name="line.400"></a>
<FONT color="green">401</FONT>       * @param color the axis color.<a name="line.401"></a>
<FONT color="green">402</FONT>       */<a name="line.402"></a>
<FONT color="green">403</FONT>      public void addAxisRange(String type, List&lt;Double&gt; range, String color) {<a name="line.403"></a>
<FONT color="green">404</FONT>        this.axisTypes.add(type);<a name="line.404"></a>
<FONT color="green">405</FONT>        this.axisLabels.add(new ArrayList&lt;String&gt;());<a name="line.405"></a>
<FONT color="green">406</FONT>        this.axisMaxRange.add(range);<a name="line.406"></a>
<FONT color="green">407</FONT>        this.axisColor.add(color);<a name="line.407"></a>
<FONT color="green">408</FONT>      }<a name="line.408"></a>
<FONT color="green">409</FONT>      <a name="line.409"></a>
<FONT color="green">410</FONT>      /**<a name="line.410"></a>
<FONT color="green">411</FONT>       * add a line style with the given parameters.<a name="line.411"></a>
<FONT color="green">412</FONT>       * @param thickness thickness of the line.<a name="line.412"></a>
<FONT color="green">413</FONT>       * @param lineLength length of the line segment.<a name="line.413"></a>
<FONT color="green">414</FONT>       * @param blankLength length of the blank segment.<a name="line.414"></a>
<FONT color="green">415</FONT>       */<a name="line.415"></a>
<FONT color="green">416</FONT>      public void addLineStyle(double thickness, double lineLength, double blankLength) {<a name="line.416"></a>
<FONT color="green">417</FONT>        this.chartLineStyle.add(Arrays.asList(new Double[]{thickness, lineLength, blankLength}));<a name="line.417"></a>
<FONT color="green">418</FONT>      }<a name="line.418"></a>
<FONT color="green">419</FONT>      /**<a name="line.419"></a>
<FONT color="green">420</FONT>       * @return true if no Y axis in this chart yet.<a name="line.420"></a>
<FONT color="green">421</FONT>       */<a name="line.421"></a>
<FONT color="green">422</FONT>      public boolean isYAxisEmpty() {<a name="line.422"></a>
<FONT color="green">423</FONT>        for (String axisType : this.axisTypes) {<a name="line.423"></a>
<FONT color="green">424</FONT>          if ("y".equals(axisType) || "y".equals(axisType)) {<a name="line.424"></a>
<FONT color="green">425</FONT>            return false;<a name="line.425"></a>
<FONT color="green">426</FONT>          }<a name="line.426"></a>
<FONT color="green">427</FONT>        }<a name="line.427"></a>
<FONT color="green">428</FONT>        return true;<a name="line.428"></a>
<FONT color="green">429</FONT>      }<a name="line.429"></a>
<FONT color="green">430</FONT>      <a name="line.430"></a>
<FONT color="green">431</FONT>      /**<a name="line.431"></a>
<FONT color="green">432</FONT>       * @return the chartMarker<a name="line.432"></a>
<FONT color="green">433</FONT>       */<a name="line.433"></a>
<FONT color="green">434</FONT>      public List&lt;String&gt; getChartMarker() {<a name="line.434"></a>
<FONT color="green">435</FONT>        return chartMarker;<a name="line.435"></a>
<FONT color="green">436</FONT>      }<a name="line.436"></a>
<FONT color="green">437</FONT>    <a name="line.437"></a>
<FONT color="green">438</FONT>      /**<a name="line.438"></a>
<FONT color="green">439</FONT>       * @return the chartLegend<a name="line.439"></a>
<FONT color="green">440</FONT>       */<a name="line.440"></a>
<FONT color="green">441</FONT>      public List&lt;String&gt; getChartLegend() {<a name="line.441"></a>
<FONT color="green">442</FONT>        return chartLegend;<a name="line.442"></a>
<FONT color="green">443</FONT>      }<a name="line.443"></a>
<FONT color="green">444</FONT>    <a name="line.444"></a>
<FONT color="green">445</FONT>      /**<a name="line.445"></a>
<FONT color="green">446</FONT>       * @return a random color in format of RRGGBB.<a name="line.446"></a>
<FONT color="green">447</FONT>       */<a name="line.447"></a>
<FONT color="green">448</FONT>      public static String getRandomColor() {<a name="line.448"></a>
<FONT color="green">449</FONT>        Long longValue = Math.round(Math.random() * 0xFFFFFF);<a name="line.449"></a>
<FONT color="green">450</FONT>        String randomColor = "000000" + Long.toHexString(longValue);<a name="line.450"></a>
<FONT color="green">451</FONT>        randomColor = randomColor.substring(randomColor.length() - 6);<a name="line.451"></a>
<FONT color="green">452</FONT>        return randomColor;<a name="line.452"></a>
<FONT color="green">453</FONT>      }<a name="line.453"></a>
<FONT color="green">454</FONT>      /**<a name="line.454"></a>
<FONT color="green">455</FONT>       * @return a random marker.<a name="line.455"></a>
<FONT color="green">456</FONT>       */<a name="line.456"></a>
<FONT color="green">457</FONT>      public static String getRandomMarker() {<a name="line.457"></a>
<FONT color="green">458</FONT>        Random random = new Random();<a name="line.458"></a>
<FONT color="green">459</FONT>        return markers.get(random.nextInt(markers.size()));<a name="line.459"></a>
<FONT color="green">460</FONT>      }<a name="line.460"></a>
<FONT color="green">461</FONT>      /**<a name="line.461"></a>
<FONT color="green">462</FONT>       * @param markerColors the markerColors to set<a name="line.462"></a>
<FONT color="green">463</FONT>       */<a name="line.463"></a>
<FONT color="green">464</FONT>      public void setMarkerColors(List&lt;String&gt; markerColors) {<a name="line.464"></a>
<FONT color="green">465</FONT>        this.markerColors = markerColors;<a name="line.465"></a>
<FONT color="green">466</FONT>      }<a name="line.466"></a>
<FONT color="green">467</FONT>    <a name="line.467"></a>
<FONT color="green">468</FONT>      /**<a name="line.468"></a>
<FONT color="green">469</FONT>       * @return the markerColors<a name="line.469"></a>
<FONT color="green">470</FONT>       */<a name="line.470"></a>
<FONT color="green">471</FONT>      public List&lt;String&gt; getMarkerColors() {<a name="line.471"></a>
<FONT color="green">472</FONT>        return markerColors;<a name="line.472"></a>
<FONT color="green">473</FONT>      }<a name="line.473"></a>
<FONT color="green">474</FONT>      /**<a name="line.474"></a>
<FONT color="green">475</FONT>       * Set the size of the bar chart.<a name="line.475"></a>
<FONT color="green">476</FONT>       * @param barHeight the height or width of the bar.<a name="line.476"></a>
<FONT color="green">477</FONT>       * @param groupSpace the space between groups.<a name="line.477"></a>
<FONT color="green">478</FONT>       * @param barSpace the space between bars in a group.<a name="line.478"></a>
<FONT color="green">479</FONT>       */<a name="line.479"></a>
<FONT color="green">480</FONT>      public void setBarChartSize(int barHeight, int groupSpace, int barSpace) {<a name="line.480"></a>
<FONT color="green">481</FONT>        this.barChartSize.clear();<a name="line.481"></a>
<FONT color="green">482</FONT>        barChartSize.add(barHeight);<a name="line.482"></a>
<FONT color="green">483</FONT>        barChartSize.add(groupSpace);<a name="line.483"></a>
<FONT color="green">484</FONT>        barChartSize.add(barSpace);<a name="line.484"></a>
<FONT color="green">485</FONT>      }<a name="line.485"></a>
<FONT color="green">486</FONT>    <a name="line.486"></a>
<FONT color="green">487</FONT>      /**<a name="line.487"></a>
<FONT color="green">488</FONT>       * @param backgroundColor the backgroundColor to set<a name="line.488"></a>
<FONT color="green">489</FONT>       */<a name="line.489"></a>
<FONT color="green">490</FONT>      public void setBackgroundColor(String backgroundColor) {<a name="line.490"></a>
<FONT color="green">491</FONT>        this.backgroundColor = backgroundColor;<a name="line.491"></a>
<FONT color="green">492</FONT>      }<a name="line.492"></a>
<FONT color="green">493</FONT>    <a name="line.493"></a>
<FONT color="green">494</FONT>      /**<a name="line.494"></a>
<FONT color="green">495</FONT>       * @return the backgroundColor<a name="line.495"></a>
<FONT color="green">496</FONT>       */<a name="line.496"></a>
<FONT color="green">497</FONT>      public String getBackgroundColor() {<a name="line.497"></a>
<FONT color="green">498</FONT>        return backgroundColor;<a name="line.498"></a>
<FONT color="green">499</FONT>      }<a name="line.499"></a>
<FONT color="green">500</FONT>    }<a name="line.500"></a>




























































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